Leakage-proof packaging box
By incorporating annular protrusions and drainage channels on the packaging box, the problems of leakage and condensation dripping from paper packaging boxes are solved, achieving both leak-proof and guiding effects, improving user experience and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-28
- Publication Date
- 2026-03-24
AI Technical Summary
Existing paper packaging boxes are prone to leakage and condensation when packaging soups, which affects the user experience.
A leak-proof packaging box was designed. By setting a first annular protrusion and a second annular protrusion on the lid and the box body for a matching connection, combined with the design of a guide channel and a steam channel, the leakage of liquid and condensate is prevented.
It effectively prevents liquid from leaking out from the edge of the box and directs hot steam, reducing condensation dripping and improving the user experience. At the same time, it has a simple structure and low cost.
Smart Images
Figure CN224029665U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the field of catering supplies, and particularly relates to a leakage-proof packing box. BACKGROUND
[0002] The existing packing box is roughly divided into two kinds, one is a plastic packing box, and the other is a paper packing box. When packing soup food, both kinds of packing boxes will have the phenomenon of spilling. In order to protect the environment, more and more merchants choose to use paper packing boxes, and the sealing performance of the paper packing box is not very good, so there is always the problem of liquid leakage and condensate dripping, which greatly affects the user experience. SUMMARY
[0003] Therefore, the utility model discloses a leakage-proof packing box, which solves the problem of liquid leakage and condensate dripping in the prior art.
[0004] In order to achieve the above purpose, the technical scheme of the utility model is as follows:
[0005] A leakage-proof packing box comprises a cover body, an inner support and a box body, the cover body is detachably connected with the box body, and the inner support is arranged in the box body; the cover body is provided with a first annular protrusion in the circumferential direction, and the box body is provided with a second annular protrusion corresponding to the first annular protrusion; in use, the inner support is placed in the box body, and the first annular protrusion and the second annular protrusion are connected in a matched mode, so that the inner support and the liquid in the box body are prevented from leaking out.
[0006] In the above scheme, the distance L between the highest point and the lowest point of the first annular protrusion is greater than or equal to 8 mm.
[0007] In the above scheme, the elastic support interference amount C of the first annular protrusion and the second annular protrusion is greater than or equal to 0.3 mm.
[0008] In the above scheme, the length ratio N of D to the length L is greater than or equal to 0.4, and D is the vertical distance between the plane where the edge of the second annular protrusion is located and the lowest plane of the first annular protrusion.
[0009] In the above scheme, the fitting length A of the first annular protrusion and the second annular protrusion is greater than or equal to 3.5 mm.
[0010] In the above scheme, the cover body is further provided with an annular groove near the first annular protrusion, and the distance B between the lowest part of the annular groove and the highest part of the second annular protrusion is greater than or equal to 8 mm.
[0011] In the above scheme, the bottom side of the cover body is provided with a guide groove for guiding steam.
[0012] In the scheme, the leakage-proof packing box further comprises an inner holder arranged in the box body.
[0013] In the scheme, a circumferential edge of the inner holder is provided with a first boss, and a circumferential edge of the box body is provided with a second boss, and the first boss is connected with the second boss in a matched mode.
[0014] In the scheme, a radius of the second boss is greater than a radius of the first boss.
[0015] In the scheme, the first boss is further provided with a steam groove.
[0016] In the scheme, the cover body, the inner holder and the box body are all made of paper-plastic material.
[0017] Compared with the prior art, the first annular boss and the second annular boss are connected in a matched mode, so that the cover body and the box body are detachably connected, thereby preventing the liquid in the inner holder and the box body from leaking out from the edge of the cover body; meanwhile, the cover body can guide the hot steam, preventing the condensed water from flowing out; the leakage-proof packing box has simple structure, low cost and high popularization value. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 A perspective structural schematic view of a leakage-proof packing box is provided for the embodiment of the utility model;
[0019] Figure 2 An explosion structural schematic view of a leakage-proof packing box is provided for the embodiment of the utility model;
[0020] Figure 3 A sectional view of a leakage-proof packing box is provided for the embodiment of the utility model;
[0021] Figure 4 A Figure 3 An enlarged schematic view of structure at A in the middle;
[0022] Figure 5 A perspective structural schematic view of a cover body in a leakage-proof packing box is provided for the embodiment of the utility model;
[0023] Figure 6 A perspective structural schematic view of an inner holder in a leakage-proof packing box is provided for the embodiment of the utility model;
[0024] Figure 7 A perspective structural schematic view of a box body in a leakage-proof packing box is provided for the embodiment of the utility model.
[0025] In the figure, 1. cover, 11. first annular protrusion, 12. annular groove, 13. flow guide groove, 2. inner support, 21. first boss, 22. steam groove, 3. box body, 31. second annular protrusion, 32. second boss. DETAILED DESCRIPTION
[0026] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail with specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.
[0027] In the description of the utility model, it is necessary to make clear that the terms "vertical", "transverse", "longitudinal", "front", "back", "left", "right", "up", "down", "horizontal" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the utility model, and do not mean that the device or element referred to must have a specific orientation or position, so it cannot be understood as a limitation on the utility model. In the description of the utility model, it should be pointed out that unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0028] EMBODIMENT
[0029] The utility model embodiment provides a kind of leakage-proof packing box, referring to Figures 1 to 7 , including cover 1, inner support 2 and box body 3, cover 1 and box body 3 are detachably connected, and inner support 2 is arranged in box body 3;The circumference of cover 1 is provided with first annular protrusion 11, and box body 3 is provided with second annular protrusion 31 corresponding to first annular protrusion 11;When using, inner support 2 is placed into box body 3, and is connected by first annular protrusion 11 and second annular protrusion 31 cooperation, to prevent liquid in inner support 2 and box body 3 from leaking out.
[0030] After using the above scheme, the utility model is connected by first annular protrusion 11 and second annular protrusion 31 cooperation, so that cover 1 and box body 3 are detachably connected, to prevent liquid in inner support 2 and box body 3 from leaking out from the edge of cover 1;While cover 1 in the utility model can guide hot steam, prevent condensate from flowing out;The utility model structure is simple, low in cost, and is worth promoting and using.
[0031] Referring to Figures 1 to 4In the embodiment of the utility model, further, the distance L between the highest point and the lowest point of the first annular protrusion 11 is greater than or equal to 8 mm, which can ensure that the liquid in the box body 3 and the inner holder 2 will not spill out of the cover body 1 due to slight shaking during transportation.
[0032] In the embodiment of the utility model, further, the length ratio N of L and D is greater than or equal to 0.4, and D is the vertical distance between the plane where the edge of the second annular protrusion 31 is located and the lowest plane of the first annular protrusion 11. In the embodiment of the utility model, the length ratio N of L and D is greater than or equal to 0.4, which further prevents the liquid from leaking out of the connection between the first annular protrusion 11 and the second annular protrusion 31.
[0033] In the embodiment of the utility model, further, the elastic support interference amount C of the first annular protrusion 11 and the second annular protrusion 31 is greater than or equal to 0.3 mm. In the embodiment of the utility model, C is greater than or equal to 0.3 mm, which can ensure that the contact between the first annular protrusion 11 and the second annular protrusion 31 will not be too loose or the material will not be damaged, thereby ensuring that the liquid in the box body 3 will not leak out of the connection between the second annular protrusion 31 and the first annular protrusion 11.
[0034] In the embodiment of the utility model, further, the fitting length A of the first annular protrusion 11 and the second annular protrusion 31 is greater than or equal to 3.5 mm. In the embodiment of the utility model, A is greater than or equal to 3.5 mm, which ensures that the first annular protrusion 11 and the second annular protrusion 31 will not be loose through sufficient friction, thereby ensuring that the liquid in the box body 3 and the inner holder 2 will not spill out of the cover body 1 due to slight shaking during transportation.
[0035] Referring to Figure 3 and Figure 4 In the embodiment of the utility model, further, the cover body 1 is provided with an annular groove 12 near the first annular protrusion 11, and the distance B between the lowest part of the annular groove 12 and the highest part of the second annular protrusion 31 is greater than or equal to 8 mm. In the embodiment of the utility model, B is greater than or equal to 8 mm, which ensures that the cooperation and connection of the cover body 1 and the box body 3 are more stable.
[0036] Referring to Figure 3 In the embodiment of the utility model, further, the bottom side of the cover body 1 is provided with a flow guide groove 13 for guiding steam. In the embodiment of the utility model, the flow guide groove 13 is an annular groove, and the flow guide groove 13 can guide the hot steam. Specifically, when the hot steam in the inner holder 2 evaporates on the inner side of the cover body 1, it can be gathered through the flow guide groove 13 and then drip on the inner holder 2, so that the condensed water will not be spilled due to shaking, jolting and side placement during transportation.
[0037] Referring toFigure 2 、 Figure 3 、 Figure 6 and Figure 7 In the embodiment of the utility model, further, the circumferential edge of the inner support 2 is provided with a first boss 21, the circumferential edge of the box body 3 is provided with a second boss 32, and the first boss 21 is connected with the second boss 32 in a matched mode. The matched connection between the first boss 21 and the second boss 32 can prevent the inner support 2 from falling to the bottom of the box body 3.
[0038] In the embodiment of the utility model, further, the radius of the second boss 32 is greater than the radius of the first boss 21. In the embodiment of the utility model, the inner support 2 can be placed on the second boss 32, which is further ensured.
[0039] In the embodiment of the utility model, further, the first boss 21 is also provided with a steam groove 22. In the embodiment of the utility model, the number of the steam grooves 22 is two, and the steam in the box body 3 can rise to the flow guide groove 13 on the cover body 1 through the steam grooves 22, be gathered through the flow guide groove 13, and then drip on the inner support 2.
[0040] Referring to 1 to Figure 7 In the embodiment of the utility model, further, the cover body 1, the inner support 2 and the box body 3 are all made of paper plastic material. The cover body 1, the inner support 2 and the box body 3 in the embodiment of the utility model are suitable for paper pulp molding.
[0041] The working principle of the leakage-proof packing box provided in the embodiment of the utility model is as follows:
[0042] Referring to Figures 1 to 7 First, the food is loaded into the box body 3 and the inner support 2, and then the inner support 2 is placed in the box body 3 through the first boss 21 and the second boss 32; then the cover body 1 is buckled on the box body 3, the first annular protrusion 11 is connected with the second annular protrusion 31 in a matched mode, and the liquid in the box body 3 and the inner support 2 will not leak out during the transportation process; finally, the hot steam in the box body 3 rises to the flow guide groove 13 through the steam groove 22, the hot steam in the inner support 2 also rises to the flow guide groove 13, is gathered at the flow guide groove 13, and finally the condensed water naturally drips into the inner support 2.
[0043] In conclusion, the first annular protrusion 11 and the second annular protrusion 31 are matched and connected, so that the cover body 1 and the box body 3 are detachably connected, and then the liquid in the inner support 2 and the box body 3 is prevented from leaking out from the edge of the cover body 1; meanwhile, the flow guide groove 13 can guide the hot steam and prevent the condensed water from flowing out; the steam groove 22 can guide the hot steam in the box body 3 into the flow guide groove 13, and then the condensed water drops in the inner support 2; the first annular protrusion 11 and the second annular protrusion 31 are designed with key sizes, so that the possibility of the condensed water and oil drops falling on the desktop of a user is greatly reduced, and the user experience is improved; the utility model has simple structure and low cost, and is worth promoting and using.
[0044] The above merely describes the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.
Claims
1. A leakproof packing box, characterized by, The utility model provides a cover (1), inner to (2) and box body (3), the cover (1) with box body (3) can be dismantled and is connected, and inner to (2) is arranged in box body (3);The circumferential direction of cover (1) is provided with first annular convex (11), and the second annular convex (31) corresponding with first annular convex (11) is provided on box body (3);When using, inner to (2) is placed into box body (3), and is connected through first annular convex (11) and second annular convex (31) cooperation, and then prevents inner to (2) and the liquid in box body (3) from leaking out.
2. A leakproof packing box according to claim 1, characterized in that The distance between the highest point and the lowest point of the first annular convex (11) is L≥8mm.
3. A leakproof packing box according to claim 2, characterized in that The ratio of the length of D to the length of L is N≥0.4, where D is the vertical distance between the plane where the edge of the second annular convex (31) is located and the lowest plane of the first annular convex (11).
4. A leakproof packing box according to claim 3, characterized in that The elastic support interference amount C of the first annular convex (11) and the second annular convex (31) is C≥0.3mm.
5. A leakproof packing box according to claim 4, characterized in that The length of the first annular convex (11) and the second annular convex (31) is A≥3.5mm.
6. A leakproof packing box according to claim 5, characterized in that The cover (1) is further provided with an annular groove (12) near the first annular convex (11), and the distance between the lowest point of the annular groove (12) and the highest point of the second annular convex (31) is B≥8mm.
7. A leakproof packing box according to any one of claims 1-6, characterized in that The bottom side of the cover (1) is provided with a flow guide groove (13) for guiding steam.
8. A leakproof packing box according to claim 7, characterized in that The circumferential edge of the inner to (2) is provided with a first boss (21), and the circumferential edge of the box body (3) is provided with a second boss (32), and the first boss (21) is connected with the second boss (32).
9. A leakproof packing box according to claim 8, characterized in that The radius of the second boss (32) is greater than the radius of the first boss (21).
10. A leakproof packing box according to claim 8, characterized in that The cover (1), the inner to (2), and the box body (3) are all made of paper-plastic material.